Type-writing machine.



c. G. ROSENHAUER.

TYPE WRITING MACHINE.

APPLICATION FILED APB. 8,1910.

a Fig. 5.

v 1m; swim.

Patented Dec. 13, 1910. j

theline-space mechanism has fed the the platen frame end and operated 1U idle position. 40.

' the platen, of a in the pat ing" cards -'or envelops, for lease lever may paper along to uncover the'groove, so that further lme-spacing is prevented.

To throw the latch to idle position, a releasing lever 22 is pivoted at 23, on the end of the platen frame adjacent the latch, one arm 24 of said lever being formed into a fingerextending between the lever 12 and by depressing a--finger piece 25, forming the opposite arm of said release lever, to throw the latch 10 out of engagement with the linespace mechanism.

. Since it is sometimes desirable to maintain the latch in idle position, notwithstanding as when writinstance, the rebe made to retain its ads juste'd'positions, by frictional contact with the lug 27 to which it is pivoted.

' The usual paper shield 20 may be slotted, as at 26, to enable the trip to have access to the groove 20, and it will be understood that the trip can be locatedelsewhere than as shown, to eifect the locking of the line-spacing mechanism when. the bottom edge is closer to or farther from the printing line.

Having thus described myv invention, I

that the groove is uncovered,

l. In a typewriting machine, the combination with a platen and line-space mechanism to feed the paper, of a. latch to lock the line-space mechanism inoperative, a paper-controlled trip to hold the latch idle until" the bottom edge of the paper passes the t rip, and a releasing finger independent of the paper and-movable independently of the latch tothrow the latter and retain it in 2. Ina typewriting machine, the combination with a platen having a depression therein, and line-space mechanism to turn paper-controlled trip tend= mg to occupy said depression upon the renioval of the by the tri I? of the line-space mechanism, to prevent the mechanical feed of the paper.

3. In a typewriting machine, the combination with a platen and a line-space mechanism to feed the pa er, of a paper-controlled trip, a latch control ed by the trip and interposable directly in the line-space mechanism,

to prevent the mechanical feed of the paper, and a release device independent of the sheet and movable independently of the latch to dislodgethe latch from the line-space mechanism and hold it in idle position.

4. Ina typewriting machine, the combi I nation with a platenhaving a depression therein, and a line-space mechanism to feed the paper,

l of a sheet-controlled paper end indicating device including a latch to lock uncovers the depression to paper, and a latch controlled and automatically interposable the linespace mechanism against operation, a trip tendin to occupy the depression in the platen an eflz'ective to hold the latch inoperative until the bottom edge of the paper passes from between the trip and the depression, and a releasing lever to disconnect the latch from the line-space mechanism and retain it in ineffective position.

In a typewriting machine, the combination with a a depression therein, pressure-roll mccha nism and line-space mechanism to feed-the paper, of a paper end indicator including a lever, a latch on one arm of the lever tending to engage and locl; inoperative, and ,a paper-controlled lri p hinged on the pressure-roll mechanism and engaged by the opposite arm of the lever to hold the latch idle until the bottom edge of the paper uncovers the depression to admit the trip.

.6. In a typewriting machine, the combination with a platen having a depression therein, a platen frame in which the platen is journaled, a line space mechanism includplaten frame, a platen having the line-space mechanism mg a slide with a lip thereon, of a paper end indicator comprising ashiftable latch to fit between the lip of the slide and the adj acent'edgc ofthe end of the platen fra me, to prevent the operation of the li nespacc anechanism, and a paper-controlled trip effective to hold the check idle until the paper admit the trip.

7. In a typewriting machine, the combi-- nation with a platenxhaving a depression therein, a platen frame in which the platen is journaled, a line-space'mechanism including a slide with a lip thereon, of a paper end indicator comprising a lever'having a latch on one arm to fitv between the lip and the adjacent edge of the end of the platen frame,

to prevent the operation of the line-space mechanism, and a movable trip against which the opposite arm of the lever presses to throw the trip into the depression in the platen whenuncovere'd by the effect the operation of the cheek.

8. In a typewriting machine,- the combination with a rotatable platen andlinespacing mechanism therefor, of a sheet-econtrolled locking mechanism to prevent operation of the line-spacing mechanism and 7 thereby indicate the approach ofthe bottom of the sheet to the printing hue, and a release device independent the sheet and movable independently of the locking mechanism, to move the latter out of operative position and hold it there. *1

CHARLES- G. II OSENHAUER. VV-itnesses Y K. FnANKronT, B. GOLDBERG.

paper, and 

